阅读下列短文，掌握其大意，然后从26—50各题所给的四个选项中，选出一个最佳答案。
The use of nuclear power has already spread all over the world, However, scientists still have
not 36 on what should be done with the large 37 of waste material that tend to increase everyyear .
Most waste materials are dealr38simply by placing them39.But nuclear waste40be dealt with very carefully. It gives41dangerous radiation and it will continue to be 42for hundreds, thousands, even mil-lions of years.
How should we get rid of such waste material in a43that it will not harm the environment? Where can we safely44it? One idea is to put this45waste inside a 46 container ,47is then dropped to the deep bottom of the ocean. But some scientists believe that this way of dealing with nuclear waste could kill fish and other living things in the oceans48interfere(干扰)with their growth.. Another way49nuclear waste is to send it into space, to the sun, 50 it would be burned. Some scientists suggests suggest that this polluting material51buried thousands of meters under the52surface. Such under-ground areas must be lree53possible earthquakes. Advance id being54,But it may still be many years55this problem could be finally settled.

A．planned B．agreed C．regarded D．known

A．nunber B．amounts C．lot D．mass

A．of B．with C．up D．to

A．anywhere B．nowhere C．elsewhere D．somewhere

A．may B．should C．must D．can

A．away B．off C．up D．down

A．harm B．deathly C．dying D．deathly

A．method B．way C．means D．manner

A．place B．export C．do with D．do

A．radioactive B．radiation C．active D．activity

A．large B．stone C．thick D．nice

A．that B．such C．and D．which

A．or B．and C．so D．then

A．to move B．to transport C．to remove D．to carry

A．so B．when C．as D．here

A．can be B．being C．be D．muse be

A．earth B．being C．ocean D．water

A．of B．with C．at D．in

A．caused B．made C．taken D．done

A．when B．if C．befire D．thus